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This page introduces the technical foundations of the Pleo API, which apply whether you’re integrating as a Pleo Partner or a Pleo Customer. The rest of this page focuses on Pleo Partners building multi-customer ERP or Accounting System integrations. If you’re connecting your own company’s systems to Pleo, see the Pleo Customers Quickstart instead. If you are evaluating Pleo for your internal accounting architecture, see the Platform Overview.

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Technical Infrastructure

  • REST API: Standard HTTP verbs (GET, POST, PUT, DELETE)
  • JSON Format: Consistent parsing across programming environments
  • OpenAPI Specification: Full API documentation, client code generation, and automated testing support

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Integration Focus and Marketplace

  • Primary Scope: ERP and Accounting System integrations built for multiple customers
  • App Marketplace: Pre-built integrations available for supported systems via the Pleo App Marketplace

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Integration Scenarios

  • Multi-customer Integrations:
    Build and manage integrations that connect multiple client Accounting Systems to Pleo when pre-built Marketplace solutions are unavailable.

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API Capabilities by Use Case

Pleo’s APIs are designed to support bookkeeping, automation, and integration with downstream systems. The APIs are organised around common partner integration scenarios, rather than individual endpoints.

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Bookkeeping and Accounting Exports

  • Export API
    Export approved, accounting-ready expense data from Pleo to an external ERP or Accounting System.

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Dimensions and Classification

  • Tags API
    Assign and manage tags (such as cost centres or dimensions) used for accounting and reporting.
  • Tax Code API
    Synchronise and manage tax codes used during expense classification and export.

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Automation and Events

  • Webhook Subscriptions API
    Subscribe to platform events and receive real-time notifications for export jobs and vendor updates.

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User and Identity Data

  • Employees API
    Retrieve employee details scoped to a company or organisation for reconciliation and automation.

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Marketplace Integrations

  • App Marketplace APIs
    Enable integrations that connect Pleo with third-party applications distributed through the App Marketplace.
These capabilities can be combined to build end-to-end integrations that synchronise data, automate workflows, and export accounting-ready records at scale.

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What Comes Next?

  • Get started as a Pleo Partner Follow the Pleo Partners Quickstart to onboard to Staging and register your integration intent through the Early Access Programme (EAP).
  • Get started as a Pleo Customer Follow the Pleo Customers Quickstart to request access to Standalone API Keys.